private void butDelete_Click(object sender, EventArgs e)
 {
     if (_groupCur.IsNew)
     {
         DialogResult = DialogResult.Cancel;
         return;
     }
     try {
         UserGroups.Delete(_groupCur);
         DialogResult = DialogResult.OK;
     }
     catch (Exception ex) {
         MessageBox.Show(ex.Message);
     }
 }
 protected void Page_Load(object sender, EventArgs e)
 {
     if (BasePage.RequestString("Action") == "Delete")
     {
         int id = BasePage.RequestInt32("GroupId");
         if (id == -2)
         {
             AdminPage.WriteErrMsg("匿名会员组不能删除!", "UserGroupManage.aspx");
         }
         if (UserGroups.Delete(id))
         {
             AdminPage.WriteSuccessMsg("删除成功!", "UserGroupManage.aspx");
         }
     }
 }